This CNC machine mainly mills polystyrene. This results in a large number of small particles which become lodged in all parts of the machine due to their electrostatic charge. Conventional linear guides and bearings become clogged over time and require a great deal of servicing. Now that the manufacturer has started using a lubricant-free drylin® linear guide system on all three axes, maintenance work is outdated. In addition, the milling machine achieved speeds of up to 50,000 mm/min on the X- and Y-axis thanks to the excellent gliding properties of the system.